WO2018166184A1 - Led灯条及具有该led灯条的背光模组 - Google Patents
Led灯条及具有该led灯条的背光模组 Download PDFInfo
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- WO2018166184A1 WO2018166184A1 PCT/CN2017/104736 CN2017104736W WO2018166184A1 WO 2018166184 A1 WO2018166184 A1 WO 2018166184A1 CN 2017104736 W CN2017104736 W CN 2017104736W WO 2018166184 A1 WO2018166184 A1 WO 2018166184A1
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/0091—Positioning aspects of the light source relative to the light guide
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0031—Reflecting element, sheet or layer
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
- G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/009—Positioning aspects of the light source in the package
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133608—Direct backlight including particular frames or supporting means
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
- G02B6/0073—Light emitting diode [LED]
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0083—Details of electrical connections of light sources to drivers, circuit boards, or the like
Definitions
- the present disclosure relates to an LED device, and in particular to an LED light bar and a backlight module having the same.
- the design trend of LCD devices is to be bright and thin, but the thinness and high brightness of existing LCD devices are in conflict with design.
- the thin and light design of the LCD device has limited space and cannot provide space for setting more LED light-emitting elements, and the high-brightness design of the LCD device requires more LED light-emitting elements to provide sufficient brightness.
- a main object of the present disclosure is to provide an LED light bar having a large number of LED light-emitting elements.
- Another main object of the present disclosure is to provide a backlight module that is light in structure and high in brightness.
- an LED light bar including a circuit board, wherein the circuit board has a board body and a support structure disposed on a surface of the board body, and the support structure is provided with a plurality of An LED light-emitting element, wherein the plurality of LED light-emitting elements are arranged in a plurality of rows and both face a first direction parallel to the plate body, and each row of the LED light-emitting elements
- the arrangement direction of the pieces is a second direction parallel to the plate body and perpendicular to the first direction, and projections of the LED light emitting elements on a plane parallel to the second direction and perpendicular to the first direction are mutually Staggered.
- the height of the row of the LED light emitting elements in the first direction is higher than that in the first direction.
- the height of the front row of the LED light-emitting elements is higher than that in the first direction.
- the support structure includes a plurality of supports, and the plurality of the support members are disposed on the plate body and distributed in a plurality of rows, and each of the support members is provided with at least one of the
- the LED light-emitting element has a height of the row of the support members relatively rearward in the first direction higher than a height of the adjacent row of the support members in the first direction, the higher row
- the height of the LED lighting elements disposed on the support is higher than the height of the adjacent lower row of the supports.
- each of the supports of each row is evenly spaced in the second direction.
- the support structure is stepped and formed with a plurality of arrangement faces perpendicular to the bottom plate and perpendicular to the first direction, and each of the arrangement faces is provided with at least one
- the LED light-emitting elements are arranged such that the height of the arrangement surface that is relatively rearward in the first direction is higher than the height of the adjacent one of the arrangement surfaces of the adjacent ones in the first direction.
- each of the LED light emitting elements on each of the arrangement faces is evenly spaced in the second direction.
- a backlight module includes a light guide plate and the LED light bar disposed on a light incident side of the light guide plate, wherein a light incident side of the light guide plate corresponds to The plurality of rows of the LED light-emitting elements of the LED light strip.
- the light incident side of the light guide plate is formed with a plurality of light guide surfaces, and the plurality of light guide surfaces are respectively correspondingly coupled to the plurality of rows of the LED light emitting elements.
- the LED light emitting elements are arranged in two rows, the height of the row of the LED light emitting elements relatively backward in the first direction is higher than the row in the first direction. a height of the LED light emitting element; wherein The light-incident side of the light guide plate is provided with a stepped slot, and two light guiding surfaces are formed, and the two light guiding surfaces are respectively matched to the two rows of the LED light-emitting elements.
- a reflective sheet is disposed between the two light guiding surfaces, and the reflective sheet is located at the top of the slotted slot.
- 1 is a side view of a conventional LED module
- FIG. 2 is a top plan view of the LED light bar of the LED module shown in FIG. 1;
- FIG. 3 is a schematic structural view of a support structure of the LED module shown in FIG. 1 and an LED light-emitting element;
- FIG. 4 is a top plan view of an LED light bar, according to an exemplary embodiment
- Figure 5 is a schematic view showing the structure of the first support member and the LED light-emitting element of the LED light bar shown in Figure 4;
- FIG. 6 is a schematic structural view of a second support member and an LED light-emitting element of the LED light bar shown in FIG. 4;
- FIG. 7 is a schematic structural diagram of a backlight module according to an exemplary embodiment.
- FIGS. 1 through 3 show a side view of a conventional LED module 100.
- FIG. 2 shows a top view of its LED strip
- FIG. 3 shows a schematic view of its support structure 110 and LED illumination element 111.
- the support structures 110 are disposed on the circuit board 120 at intervals and in a row.
- the light incident side of the light guide plate 130 corresponds to the LED light emitting element 111 disposed on the support structure 110, and the LED light strip Cooperate.
- the type and number of the support structure 110 and the LED light-emitting element 111 are limited, so that it is difficult to achieve the effect of improving the brightness on the basis of satisfying the thinness and lightness. Furthermore, based on the traces on the LED strips, the number of LED light-emitting elements 111 should not be too large, and the number of LED light-emitting elements is small, which is likely to cause problems of HOT SPOT, and the AP value is a bottleneck for improving brightness.
- FIG 4 a top plan view of an LED light strip 200 that is capable of embodying the principles of the present disclosure is representatively shown in Figure 4.
- the LED light bar 200 proposed by the present disclosure is exemplified by a backlight module, and further, a backlight module having an LED light bar 200 and a light guide plate 300 is taken as an example.
- a backlight module having an LED light bar 200 and a light guide plate 300 is taken as an example.
- the LED light bar 200 proposed by the present disclosure includes a circuit board.
- a schematic structural view of the first support member 210 and the LED light-emitting element 212 of the LED light bar 200 is representatively shown in FIG. 5; the LED light bar is representatively shown in FIG. 6 .
- the circuit board mainly comprises a plate body 230 and a support structure, and the support structure comprises a plurality of support members.
- the plate body 230 is substantially in the form of a strip-shaped flat plate, and the manner in which the plate body is disposed is not limited to being horizontal, vertical or other manners, which is described here.
- the circuit board may be an existing flexible circuit board, and the board 230 is a wiring area of the flexible circuit board, and the circuit board may also be other suitable for the LED light bar 200. Road board.
- the shape of the plate 230 is not limited to a strip shape, and can be flexibly adjusted according to the use requirements of the LED light bar 200.
- a plurality of support members are disposed on one surface of the plate body 230 , and the plurality of support members are distributed in two rows (the rows are parallel to the plate body).
- a second direction F2 is arranged to extend), and each row of supports is spaced apart from each other.
- a first direction F1 parallel to the plate body 230 is defined (the first direction F1 is preferably perpendicular to the second direction F2, which may also be understood as the light-emitting surface illumination direction of the LED light-emitting element), and is defined in the first
- a row of support members in the direction F1 is a first row
- a row of supports in the first direction F1 is a second row.
- the support members defining the first row are the first support members 210
- the support members of the second row are the second support members 220.
- the plurality of first support members 210 and the plurality of second support members 220 are offset from each other.
- the plurality of supports of each row may preferably be arranged in a uniform interval, and is not limited thereto.
- each of the first support members 210 is provided with an LED light-emitting element 212 , and the LED light-emitting elements 212 are disposed at a position of the first support member 210 facing the first direction F1 .
- each of the second support members 220 is provided with an LED light-emitting element 222, and the LED light-emitting elements 222 are disposed at a position of the second support member 220 facing the first direction F1. That is, the LED light-emitting elements disposed on the rows of supports are all oriented in the first direction.
- the height of the second support member 220 is higher than the height of the first support member 210, so that the LED light-emitting element 222 of the second support member 220 can be disposed at a position higher than the first support member 210, so as to avoid the rear row.
- the LED lighting element 222 is blocked by the first support 210 of the front row.
- the first support member 210 may adopt an existing circuit board structure or the like, and the second support member 220 may be opposite to the first support member on the basis of the existing structure. 210 increases the height, but not limited to this.
- the LED light-emitting elements 212 of the first support members 210 and the LED light-emitting elements 222 of the second support members 220 can be shifted from each other without being supported by the support members.
- the increase in the number of rows of LED light-emitting elements affects the luminous intensity and effect of the LED light bar 200.
- the arrangement of the support structure is not limited to two rows of supports, but may also be multiple rows of supports.
- the plurality of support members of the LED light bar 200 may be distributed in a plurality of rows, and the LED light-emitting elements of the respective support members of the respective rows are staggered from each other by designing the arrangement of the rows of the support members.
- the height of the LED lighting elements of the row of supports in the first direction F1 is higher than the height of the adjacent row of supports in the first direction F1.
- the LED light-emitting elements of the rows of supports are projected on a plane parallel to the second direction F2 and perpendicular to the first direction F1, and the rows of LED light-emitting elements are staggered from each other in the height direction of the opposite plate 230.
- LED light strip 200 illustrated in the figures and described in this specification is only one example of many of the LED light strips 200 that can employ the principles of the present disclosure. It should be clearly understood that the principles of the present disclosure are in no way limited to any detail of the LED light strip 200 shown in the figures or described in this specification or any component of the LED light strip 200.
- the height of the LED light-emitting elements of the two rows of supports may be disregarded, but two rows of supports may be The pieces are staggered with each other such that the LED light-emitting elements are offset from each other in a second direction F2 parallel to the plate body 230 and perpendicular to the first direction F1. Accordingly, when the support members are arranged in a plurality of rows, if the heights of the LED light-emitting elements of the rows of support members are not considered, the support members of the rows are staggered to each other to ensure mutual misalignment, thereby achieving the purpose of improving the luminous intensity and effect. .
- the heights of the LED light-emitting elements of the support members of the partial rows may be the same and different from the heights of the LED light-emitting elements of the support members of the other partial rows.
- the partial rows of LED light-emitting elements having the same height they can be staggered by means of staggered arrangement.
- the heights can be shifted according to the difference in height, and of course, they can be arranged in a staggered manner. The way is not limited to this.
- each set of first support members and one corresponding to each other may be The second support is designed as a stepped structure in one piece. That is, in the present embodiment, the support structure includes a plurality of stepped structures arranged at intervals in the second direction.
- each stepped structure comprises a plurality of arrangement surfaces (the arrangement surface is a façade of the step structure when the plate body is defined as a horizontal reference surface, and the arrangement surface is two, the step structure is two steps, and the arrangement surface is multiple
- the step structure is a multi-step step, and each of the arrangement surfaces is provided with an LED light-emitting element.
- a plurality of LED light-emitting elements are arranged in a plurality of rows, and the height of the relatively rearward arrangement surface in the first direction is higher than the height of the relatively front arrangement surface, that is, the rear row of LED light-emitting elements.
- the height is higher than the height of the front row of LED light-emitting elements, so as to achieve the effect that the LED light-emitting elements are staggered from each other to ensure the luminous intensity.
- the support structure is a stepped structure of an integral form, and it can also be understood that the stepped structures in the second embodiment are connected together in the second direction, and are formed in the second direction.
- the support structure is formed with a plurality of arrangement faces that are perpendicular to the bottom plate and extend perpendicular to the first direction and extend in the second direction.
- Each of the arrangement faces is provided with LED light-emitting elements arranged in a row, and the arrangement direction of the rows on the arrangement surface is parallel to the second direction.
- the height of the relatively rearward arrangement surface in the first direction is higher than the height of the relatively front arrangement surface, thereby achieving the effect that the rows of LED light-emitting elements are staggered to each other to ensure luminous intensity.
- the support structure adopts the above-described integral structure, the process of the present disclosure is simplified, the manufacturing cost is reduced, and the production efficiency is improved.
- the present disclosure is to provide a plurality of rows of LED light emitting elements on a support structure, and design each LED light emitting element to be parallel to the second direction
- the projections on the plane perpendicular to the first direction are staggered from each other, so that the occlusion phenomenon that may occur when the plurality of rows of LED illuminating elements are disposed is avoided on the basis of satisfying the requirement of structural thinning, and the illuminating brightness is significantly improved.
- the backlight module mainly includes an LED light bar 200 and a light guide plate 300.
- the LED light bar 200 is selected from the LED light bar 200 of the present disclosure.
- the light guide plate 300 is disposed on a surface of the circuit board body 230 of the LED light bar 200 and provided with a support structure, and the light guide plate 300 has a light incident side 310. Two light guiding surfaces are formed on the light incident side, and the two light guiding surfaces are respectively fitted to the LED light emitting elements of the two rows of supports.
- the light incident side 310 of the light guide plate 300 is formed with a first guide.
- the light guide surface 311 and the second light guide surface 312, and the first light guide surface 311 corresponds to the LED light emitting element 212 disposed on the first support member 210, and the second light guide surface 312 corresponds to the LED disposed on the second support member 220.
- a stepped shape may be formed on the light incident side 310 of the light guide plate 300.
- the slot 313 is defined in a lower portion of the light incident side 310 and has a slot top and a slot sidewall.
- the slot sidewall forms a first light guiding surface 311 corresponding to the LED light emitting component 212 disposed on the first support 210.
- the sidewall of the upper portion of the light incident side 310 forms a second light guiding surface 312 to correspond to the LED light emitting element 222 disposed on the second support member 220.
- a reflective sheet 314 may be disposed between the first light guiding surface 311 and the second light guiding surface 312 . That is, the reflection sheet 314 is located at the top of the groove of the above-described slit 313.
- the light guide plate when the support structure is arranged in a plurality of rows (two rows or more) of support members, in order to match the light guide plate with the plurality of rows of support members, the light guide plate may be slotted on the light side.
- the structure is further optimized. For example, when the heights of the rows of the support members are different, the above-mentioned slits on the light-incident side of the light guide plate can be designed as a multi-stepped structure, thereby forming a plurality of guides respectively corresponding to the LED light-emitting elements provided on the rows of support members. Glossy.
- the light-incident side of the light guide plate can be designed like a zigzag structure, so as to form corresponding to each LED light-emitting element disposed on each row of support members.
- a plurality of light guiding surfaces, and the light guiding surfaces are at the same height with respect to the plane of the plate body 230.
- the present disclosure provides an LED light bar and a backlight module having the LED light bar, by disposing a plurality of rows of LED light-emitting elements that are staggered from each other on the LED light bar, and The rows of LED light-emitting elements are designed in a highly different and/or staggered structure or arrangement, which can significantly increase the brightness on the basis of meeting the requirements of lightness and thinness of the structure.
- the backlight module proposed by the present disclosure realizes the mutual matching of the remaining LED light bars by designing the light guide plate, thereby improving the brightness of the backlight module and effectively improving the HOT SPOT problem.
- Exemplary embodiments of the LED light bar and the backlight module having the LED light bar of the present disclosure are described and/or illustrated in detail above.
- embodiments of the present disclosure are not limited to the specific embodiments described herein, but rather, the components and/or steps of each embodiment can be used independently and separately from the other components and/or steps described herein.
- Each component and/or each step of an embodiment may also be used in combination with other components and/or steps of other embodiments.
- the terms "a”, “an”, “the”, “the”, etc. are used to indicate the presence of one or more elements/components/etc.
- the present disclosure provides an LED light bar and a backlight module having the same, by arranging a plurality of rows of LED light-emitting elements on the LED light bar, and designing the rows of LED light-emitting elements to have different heights and/or mutually staggered structures. Or the layout form can significantly improve the brightness on the basis of meeting the requirements of structural thinning.
- the backlight module proposed by the present disclosure realizes the mutual matching with the LED light bar by designing the light guide plate, thereby improving the brightness of the backlight module and effectively improving the HOT SPOT problem.
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- Crystallography & Structural Chemistry (AREA)
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Abstract
Description
Claims (10)
- 一种LED灯条,包括电路板,所述电路板具有板体和设于所述板体一表面的支撑结构,所述支撑结构上设有多个LED发光元件,多个所述LED发光元件呈多排布置且均朝向平行于所述板体的一第一方向,每排所述LED发光元件的排列方向均为平行于所述板体且垂直于所述第一方向的一第二方向,各所述LED发光元件在平行于第二方向且垂直于第一方向的平面上的投影相互错开。
- 根据权利要求1所述的LED灯条,其中,在各排所述LED发光元件的相邻两排中,在第一方向上相对靠后的一排所述LED发光元件的高度高于在第一方向上相对靠前的一排所述LED发光元件的高度。
- 根据权利要求2所述的LED灯条,其中,所述支撑结构包括多个支撑件,多个所述支撑件设于所述板体且呈多排分布,每个所述支撑件上设有至少一个所述LED发光元件,在第一方向上相对靠后的一排所述支撑件的高度高于在第一方向上相对靠前的相邻一排所述支撑件的高度,较高的一排所述支撑件上设置的所述LED发光元件的高度高于相邻的较低的一排所述支撑件的高度。
- 根据权利要求3所述的LED灯条,其中,每一排的各所述支撑件在第二方向上间隔均匀。
- 根据权利要求2所述的LED灯条,其中,所述支撑结构呈阶梯状,且形成有多个垂直于所述底板且垂直于所述第一方向的配置面,每个所述配置面上设有至少一排所述LED发光元件,在第一方向上相对靠后的所述配置面的高度高于在第一方向上相对靠前的相邻一排所述配置面的高度。
- 根据权利要求5所述的LED灯条,其中,每一所述配置面上的各所述LED发光元件在第二方向上间隔均匀。
- 一种背光模组,包括导光板和和设于所述导光板的入光侧的LED灯条,其中,所述LED灯条为权利要求1~6任一项所述的LED灯条,所述导光板的入光侧对应于所述LED灯条的多排所述LED发光元件。
- 根据权利要求7所述的背光模组,其中,所述导光板的所述入光侧形成有多个导光面,多个所述导光面分别对应配合于多排所述LED发光元件。
- 根据权利要求7所述的背光模组,其中,所述LED发光元件呈两排布置,在第一方向上相对靠后的一排所述LED发光元件的高度高于在第一方向上相对靠前的一排所述LED发光元件的高度;其中,所述导光板的所述入光侧开设有台阶状的开槽,并形成有两个导光面,两个所述导光面分别对应配合于两排所述LED发光元件。
- 根据权利要求9所述的背光模组,其中,两个所述导光面之间设有反射片,且所述反射片位于所述开槽的槽顶。
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CN110095867B (zh) * | 2018-01-31 | 2021-01-22 | 京东方科技集团股份有限公司 | 显示装置及方法、平视显示系统、交通工具和存储介质 |
CN109613759B (zh) * | 2019-02-20 | 2024-01-09 | 重庆惠科金扬科技有限公司 | 灯条、背光模组及显示装置 |
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